The molecular mass of caffeine (C8H10N4O2) is approximately 194.19 g/mol. Therefore, the mass of one molecule of caffeine is 194.19 g/mol in grams.
Chat with our AI personalities
To calculate the mass of one molecule of caffeine (C8H10N402), you need to add up the atomic masses of all the atoms it contains. The molar mass of caffeine is approximately 194.19 grams per mole. One molecule of caffeine will have a mass of 194.19 grams.
To find the mass of nitrogen in 0.468 g of caffeine, first determine the molar mass of caffeine, which is 194.19 g/mol. Next, calculate the mole ratio of nitrogen in caffeine, which is 3 nitrogen atoms per 1 molecule of caffeine. Then, convert 0.468 g of caffeine to moles, and finally to mass of nitrogen. The mass of nitrogen contained in 0.468 g of caffeine is approximately 0.024 g.
The molar mass of a molecule that weighs 1 dalton per mole is 1 gram per mole.
Since each molecule of sodium chloride contains one sodium atom, the mass of the sodium in a 150 gram sample of sodium chloride would be the same as the mass of the sample itself, which is 150 grams.
Percentage composition= (mass of the element/mass of the molecule)*100 The fraction of the molecule's mass that comes from the element's mass